693421546 has 4 divisors (see below), whose sum is σ = 1040132322. Its totient is φ = 346710772.

The previous prime is 693421481. The next prime is 693421559. The reversal of 693421546 is 645124396.

693421546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 504496521 + 188925025 = 22461^2 + 13745^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 693421499 and 693421508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173355385 + ... + 173355388.

Almost surely, 2^693421546 is an apocalyptic number.

693421546 is a deficient number, since it is larger than the sum of its proper divisors (346710776).

693421546 is a wasteful number, since it uses less digits than its factorization.

693421546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346710775.

The product of its digits is 155520, while the sum is 40.

The square root of 693421546 is about 26332.8985491533. The cubic root of 693421546 is about 885.1137972770.

The spelling of 693421546 in words is "six hundred ninety-three million, four hundred twenty-one thousand, five hundred forty-six".